Laura Prepon and Bryan Greenberg in October Road (2007)

THAT '70s SHOW: Randy (Josh Meyers, L) watches Donna (Laura Prepon, R) as she experiences minor difficulties raising money for children's books in the "Who Needs You" episode of THAT '70s SHOW airing Thursday, Jan. 19 (8:00-8:30 PM ET/PT) on FOX.

THAT '70s SHOW: Donna (Laura Prepon, C) tries to bring peace between Jackie (Mila Kunis, L) and Samantha (Jud Tylor, R) on the THAT '70s SHOW episode "You're my Best Friend" airing Wednesday, Nov. 9 (8:00-8:30 PM ET/PT) on FOX.

THAT '70s SHOW: The special one-hour premiere of the eighth season of THAT '70s SHOW airs Wednesday, Nov. 2 (8:00-9:00 PM ET/PT) on FOX. Front row L-R: Danny Masterson, Laura Prepon, Wilmer Valderrama, Mila Kunis.  Second row L-R: Josh Meyers,  Debra Jo Rupp, Tommy Chong, Don Stark,  Kurtwood Smith.

THAT '70s SHOW: Some private pictures put Donna (Laura Prepon, L) in a tricky postition with Hyde (Danny Masterson, R) in the THAT '70s SHOW episode "Stone Cold Crazy" airing Wednesday, Nov. 30 (8:00-8:30 PM ET/PT) on FOX.

THAT '70s SHOW: Kitty (Debra Jo Rupp, L) and Donna (Laura Prepon, R) make a tape in the one-hour season premier episode of THAT '70s SHOW "Bohemian Rhapsody" airing Wednesday, Nov. 2 (8:00-9:00 PM ET/PT) on FOX.

THAT '70s SHOW: Donna Pinciotti (Laura Prepon) on season eight of THAT '70s SHOW airing Wednesdays (8:00-8:30 PM ET/PT) on FOX.

When Eric (Topher Grace, R) forgets Kitty's birthday, he gets roped into taking her square dancing and brings Donna (Laura Prepon, L) along for the ride on THAT '70s SHOW episode 'Kitty's Birthday (That's Today?!)" Tuesday, Feb. 27 (8:00-8:30 PM ET/PT) on FOX.

When Eric (Topher Grace, R) and Donna (Laura Prepon, L) decide to go away and spend a nice weekend together alone, they are in for a real surprise on THAT '70s SHOW "Romantic Weekend" airing Tuesday, Feb. 20 (8:00-8:30 PM ET/PT) on FOX.

Laura Prepon in Orange Is the New Black (2013)

Robert Hall (R) directs Laura Prepon and Bret Harrison

Jonathan Spencer & Laura Prepon at the cast party for Lightning Bug

Kurtwood Smith, Mila Kunis, Ashton Kutcher, Wilmer Valderrama, Topher Grace, Laura Prepon, Debra Jo Rupp, and Don Stark in E! True Hollywood Story (1996)

Wilmer Valderrama and Laura Prepon in That '90s Show (2023)

Mila Kunis, Jamie Farr, Laura Prepon, and Debra Jo Rupp in That '70s Show (1998)

Jenna Fischer, Topher Grace, and Laura Prepon in That '70s Show (1998)

Kurtwood Smith, Mila Kunis, Ashton Kutcher, Danny Masterson, Wilmer Valderrama, Topher Grace, Laura Prepon, Debra Jo Rupp, and Don Stark in That '70s Show (1998)

Natasha Lyonne, Laura Prepon, and Yael Stone in Orange Is the New Black (2013)

Sam Elliott and Laura Prepon in The Hero (2017)

Laura Prepon and Taylor Schilling in Orange Is the New Black (2013)

Topher Grace and Laura Prepon in That '70s Show (1998)

Mila Kunis, Ashton Kutcher, Danny Masterson, Wilmer Valderrama, Topher Grace, and Laura Prepon in That '70s Show (1998)

Mila Kunis and Laura Prepon in That '70s Show (1998)

Mila Kunis, Lisa Robin Kelly, and Laura Prepon in That '70s Show (1998)

Kate Mulgrew, Laura Prepon, Taylor Schilling, Uzo Aduba, and Dascha Polanco in Orange Is the New Black (2013)

Kate Mulgrew, Laura Prepon, Taylor Schilling, Uzo Aduba, and Dascha Polanco in 73rd Golden Globe Awards (2016)

Mila Kunis, Ashton Kutcher, Danny Masterson, Wilmer Valderrama, and Laura Prepon in That '70s Show (1998)

Devon Sawa, Jason Schwartzman, Jaime King, Michael C. Maronna, Laura Prepon, and Jason Segel in Slackers (2002)

Bret Harrison and Laura Prepon in Lightning Bug (2004)